Beam-notching die.



lUNllIui/ @FFIQE WILLIAM G. REID, OF COLD SPRING, NEW YORK.

BE AM-NOTCHIN G DIE.

To all whom may concern:

Be it known that I, liliLLL-mi' G. Ruin, a citizen of the United States,residing at Cold Spring, Putnam county, N ew York, have invented certainnew and useful Improvements in Beam-Notching Dies, of which thefollowing is a specification.

rlhis invention pertains to improvements in dies for cutting notches inthe flanges of structural beams and will be readily understood from thefollowing description taken in connection with the accompanying drawingin which Figure l is a perspective view of a beamnotching dieexemplifying my invention: F ig. 2 a plan of the same: Fig. 3 anelevation of the inside :tace of one of the dieblocks: Fig. 4t avertical transverse section of the die: Fig. 5 a perspective view of anI-beam having several notches in the flanges illustrating the work ofthe die: and F ig. (i a perspective sectional view of a plunger or punchadapted for use with the improved die. F ig. 5 is upon a smaller scalethan the other figures.

In the drawing :-l, indicates a pair of die-blocks adapted to be securedto the stationary aw ofl any ordinary suitable punching or shearingmachine in which the notcliing tools are to be substituted for the usualpunching or shearing tools, these die-blocks being disposed side by sidewith a vertical gap between them: 2, the vertical gap between the innerportions of the two dieblocks, this gap being ot a width sulticient tofreely admit the web of the beam whose flange is to be notched: 3, thedies proper, the same being secured to the tops of the dieblocks andhaving their inner ends a distance apart corresponding substantiallywith the thickness of the web of the beam, the upper corners at theinner ends and the sides of these dies being formed for shearing action:d, an -beam which has been passed through the gap between the inner endsof the dies and has its upper flanges resting on the dies at thelocation at which it is desired to cut the notches in the flange of thebeam: pair of' upwardly and inwardly extending lugs at each end of thedie-blocks, to the front and rear of the dies, the upper inward portionof these lugs joining each other so Specicaton of Letters Patent.

Application filed August 10, 1903.

Patented Feb. 16, 1909.

serial No. 447,869.

that the lugs form arches over the beam to the front and rear of thedies: 6, bolts passing horizontally through the upper portions of thelugs and holding them firmly together, whereby the two die-blocks becomesolidly united and the two dies held in unyielding relationship to eachother: 7, a punch adapted to be secured to the slide or movable jaw ofthe machine, over the dies and to cooperate with the dies, the punchhaving' an t'l-shaped horizontal section: 8, the cross-bar portion ofthe punch, the same having a thickness corresponding with the width ofthe gap between the dies: 9, the heads of the punch, the cross-bar 8joining these heads at their centers of width, the distance between theinner faces of the heads of the punch corresponding with the width ofthe dies, and the outward projection of the heads, from the cross-bar,being equal to the greatest projection of beam-flange or greatest depthof notch to be cut: and 10 depressions in the top of the die-blocks tothe front and rear of the dies to permit the descent of theuncutportions of the beam flanges under the influence of the punch.

It the parts are to cut notches of invariable width then that invariablewidth would be the width of the oies, but if the dies are to be employedin cutting notches of v riable width then the width of the dies is tocorrespond with the minimum width of notches to be cut.

The dies are to be so adjusted under the much that the cross-bar 8 ofthe punch will pass drwn into the gap between the inner ends of the oiesand the heads orn the punch straddle the inwardly projecting ends of thedies. The cutting portions of the dies are provided with clearance, thatis to say, they are relieved below the cutting corners, and the punch,following the usual practice of shearing' tools will have properclearance from its cutting corners upwardly. It is my practice, inmaking the dies, to form all of their corners, both upper and lower andend and side, as cutting corners, and to form central reliefs acrosstheir ends and along their side edges so that each die contains fourcutting edges within itself, that is to say, the dies having beensecured in the dieblocks may, when their active edges get dull, bereversed endwise in the die-blocks, thus 'presenting new cutting edges,and they may also be turned over so as to provide two additional cuttingedges for each die. In using the dies, the beam is to be pushed endwisethrough the gap between the blocks and between the dies, with the upperflange passing under the arches and resting on the dies in such positionthat the dies correspond with the position 'of the notches to be cut. Inthis condition the beam is held in a position of abnormal elevation bythe inner corners of the dies engaging the fillets of the flanges. Thepunch is now to be brought down upon the beam and the motion continuedtill the lower end of the punch is below the top face of the dies. Thismotion of the punch results in pushing the beam downwardly, thecross-bar of the punch pushing downwardly on the metal over the beam,while the heads of the punch push downwardly on the flange metal to thefront and rear of the dies. The result is that, when the beam has beenthus pushed down, the dies cut opposite notches in each of the upperflanges of the beam, the wads or removed portions lying on the uppersurfaces of the dies. The notches thus cut will have a widthcorresponding with the width of the dies, and if wider notches arewanted then the beam is replaced and additional bites taken out of oneor the other of the shores of the notches. If it be desired to notch butone flange of the beam, then the appropriate one of the dies is to beremoved. If it be desired to notch channelbeams, having but a singleflange at each edge of its web then both dies may, if desired, be leftin position the same as in notching both flanges of I-beams.

In Fig. 5 is illustrated a beam having near the middle of length of itsupper flange a notch in each side flange, while near one end is shown anotch in one of the side flanges only, and at the opposite end thetop-flange has had one side flange cut out clear to the end'of the beam,and one of the lower flanges is shown as having a comparatively longnotch.

I claim l. Beam-notching dies comprising, a dieblock structure having agap to permit the entire lengthwise passage of the web of a beam, a pairof dies secured in the top of the die-block structure in such positionthat their inner ends will be over the gap in the die-block structureand separated from each other, and an H-shaped punch adapted to coperatewith the corners of the ends and sides of the dies, combinedsubstantially as set forth.

2. Beam-notching dies comprising, a pair of die-blocks disposed side byside but separated from each other so as to permit the entire lengthwisepassage of the'web of a beam, a die secured to the top of each dieblcclin such position that the inner endsv their inner `ends will be over thegap in the die-block structure and separated from each other, an archextending over the gap in the die-block structure at one side of thedies and adapted to permit the endwise passage under it of beam angesresting upon the dies, and an l-l-shaped punch adapted to cooperate withthe corners of the ends and sides of the dies, combined substantially asset forth.

4. Beam-notching dies comprising, a dieblock structure having a gap topermit the entire lengthwise passage of the web of a beam, a pair ofdies secured in the top of the die-block structure in such position thattheir inner ends will be over the gap on the die-block structure andseparated from each other, arches extending across the gap in thedie-block structure at each side of the dies and adapted to permit theentire endwise passage of beam flanges resting upon the dies, and antl-shaped punch adapted to coperate with the corners of the ends andsides of the dies, combined substantially as set forth.

'5. Beam-notching dies comprising, a pair of die-blocks disposed side byside with a gap between them to permit the entire lengthwise passage ofthe web of a beam,

tween the die-blocks and separated from each other, bolts passingthrough the lugsV and clamping their abutting portions together, and anH-shaped punch adapted to cooperate with the corners and ends and sidesof the dies, combined substantially as set forth. Y

6. A die-block structure having a gap to permit the entire lengthwisepassage of the web of a beam, a pair of die-blocks secured n the top ofthe de-block structure n such position that their inner ends will beover the gap in the de-block structure and separated from each other,said dies being reversible by being turned end for end and alsoreversible by being turned bottom side up, and an H-Shaped punch adaptedto eop erate with the corners of the ends and sides of the dies,Combined substantially as Set forth.

VILLIAM G. REID. WTnesses STANLEY LITTEL, C. W. GREENE.

